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ISL22511 Schematic ( PDF Datasheet ) - Intersil

Teilenummer ISL22511
Beschreibung Single Push Button Controlled Potentiometer
Hersteller Intersil
Logo Intersil Logo 




Gesamt 13 Seiten
ISL22511 Datasheet, Funktion
ISL22511
Single Push Button Controlled Potentiometer (XDCP™)
Data Sheet
September 9, 2015
FN6678.2
Low Noise, Low Power, 32 Taps, Push
Button Controlled Potentiometer
The Intersil ISL22511 is a three-terminal digitally-controlled
potentiometer (XDCP) implemented by a resistor array
composed of 31 resistive elements and a wiper switching
network. The ISL22511 features a push button control, a
shutdown mode, as well as an industry-leading UTQFN
package.
The push button control has individual PU and PD inputs for
adjusting the wiper. To eliminate redundancy, the wiper
position will automatically increment or decrement if one of
these inputs is held longer than one second.
Forcing both PU and PD low for more than two seconds
activates shutdown mode. Shutdown mode disconnects the
top of the resistor chain and moves the wiper to the lowest
position, minimizing power consumption.
The three terminals accessing the resistor chain naturally
configure the ISL22511 as a voltage divider. A rheostat is
easily formed by floating an end terminal or connecting it to
the wiper.
NC
VCC (SUPPLY VOLTAGE)
O
PU 1
9 VCC
PD 2 UTQFN 8 ASE
PU
PD
ASE
CONTROL
BLOCK
RH 3 (Top View) 7 RL
RH VSS 4
6 RW
NC
RW
O
PU 1
8 VCC
RL PD 2 SOIC 7 ASE
RH 3 (Top View) 6 RL
VSS 4
5 RW
VSS (GROUND)
Features
• Solid-State Non-Volatile Potentiometer
• Push Button Controlled
• Single or Auto Increment/Decrement
- Fast Mode after 1s Button Press
• AUTOSTORE of Last Wiper Position or Manual Store of
Wiper Position
• Shutdown Mode
• 32 Wiper Tap Points
- Middle Scale Wiper Position on Power-Up
• Low Power CMOS
- VCC = 2.7V to 5.5V
- Terminal Voltage, 0 to VCC
- Standby Current, 3µA Max
• RTOTAL Value = 10k50k
• High reliability
- Endurance: 1,000,000 data changes per bit per register
- Register data retention: 50 years @ T +55°C
• Packages
- 8 Ld SOIC
- 10 Ld UTQFN (2.1mmx1.6mm)
• Pb-Free (RoHS Compliant)
Applications
• Volume Control
• LED/LCD Brightness Control
• Contrast Control
• Programming Bias Voltages
• Ladder Networks
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas LLC
XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas LLC 2008, 2009, 2015. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.






ISL22511 Datasheet, Funktion
ISL22511
AC Electrical Specifications Over recommended operating conditions unless otherwise specified.
SYMBOL
tGAP
tDB
tS SLOW
tS FAST
tstdn
(Note 17)
PARAMETER
Time Between Two Separate Push Button Events
Debounce Time
Wiper Change on a Slow Mode
Wiper Change on a Fast Mode
Time to Enter Shutdown Mode (keep PU and PD LOW)
MIN
(Note 18)
2
100
25
TYP
(Note 5)
15
250
50
2
MAX
(Note 18)
28
390
78
UNIT
ms
ms
ms
ms
s
tPU Power-Up to Wiper Stable
500 µs
tR VCC VCC Power-Up Rate
0.2 50 V/ms
NOTES:
5. Typical values are for TA = +25°C and 3.3V supply voltage.
6. LSB: [V(RW)31 – V(RW)0]/31. V(RW)31 and V(RW)0 are voltage on RW pin for the DCP register set to 1F hex and 00 hex respectively. LSB is
the incremental voltage when changing from one tap to an adjacent tap.
7. ZS error = V(RW)0/LSB.
8. FS error = [V(RW)31 – VCC]/LSB.
9. DNL = [V(RW)i – V(RW)i-1]/LSB -1, for i = 1 to 31; i is the DCP register setting.
10. INL = [V(RW)i – i • LSB – V(RW)]/LSB for i = 1 to 31
11. TCV
=
-------M-----a----x------V-------R-----W--------i-----–-----M-----i--n------V-------R-----W--------i-------- ------1---0----6-------for i = 5 to 31 decimal, T = -40°C to +125°C. Max( ) is the maximum value of the wiper
MaxVRWi+ MinVRWi  2 +165°C voltage and Min ( ) is the minimum value of the wiper voltage over the temperature range.
12. MI = |RW31 – RW0|/31. MI is a minimum increment. RW31 and RW0 are the measured resistances for the DCP register set to 1F hex and 00
hex respectively.
13. Roffset = RW0/MI, when measuring between RW and RL.
Roffset = RW31/MI, when measuring between RW and RH.
14. RDNL = (RWi – RWi-1)/MI, for i = 1 to 31.
15. RINL = [RWi – (MI • i) – RW0]/MI, for i = 1 to 31.
16.
TCR
=
-------M-----a----x------R-----i-----–-----M-----i--n------R-----i--------
MaxRi+ MinRi  2
------1---0----6-------
+ 165 °C
for i = 5 to 31, T
minimum value
= -40°C to +125°C. Max( ) is the maximum value
of the resistance over the temperature range.
of
the
resistance
and
Min
(
)
is
the
17. Limits should be considered typical and are not production tested.
18. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by
characterization and are not production tested.
Slow Mode Timing
tDB
PU
tGAP
MI*
VW
*MI in the AC timing diagram refers to the minimum incremental change in the wiper voltage.
6 FN6678.2
September 9, 2015

6 Page









ISL22511 pdf, datenblatt
ISL22511
Package Outline Drawing
L10.2.1x1.6A
10 LEAD ULTRA THIN QUAD FLAT NO-LEAD PLASTIC PACKAGE
Rev 5, 3/10
8.
PIN 1
INDEX AREA
2.10
A PIN #1 ID
B 1 8.
0.05 MIN.
1
0.10 MIN.
4
4X 0.20 MIN.
10 5
0.10
2X
(10X 0.60)
(2.00)
(0.80)
TOP VIEW
(10 X 0.20)
(1.30)
0.80
9
6X 0.50
BOTTOM VIEW
(0.05 MIN)
1 PACKAGE
OUTLINE
(0.10 MIN.)
MAX. 0.55
SIDE VIEW
10X 0.40
6
10 X 0.20 4
0.10 M C A B
MC
SEE DETAIL "X"
0.10 C
C
SEATING PLANE
0.08 C
(6X 0.50 )
(2.50)
TYPICAL RECOMMENDED LAND PATTERN
C 0 . 125 REF
0-0.05
DETAIL "X"
NOTES:
1. Dimensioning and tolerancing conform to ASME Y14.5M-1994.
2. All Dimensions are in millimeters. Angles are in degrees.
Dimensions in ( ) for Reference Only.
3. Unless otherwise specified, tolerance : Decimal ± 0.05
4. Lead width dimension applies to the metallized terminal and is measured
between 0.15mm and 0.30mm from the terminal tip.
5. Maximum package warpage is 0.05mm.
6. Maximum allowable burrs is 0.076mm in all directions.
7. Same as JEDEC MO-255UABD except:
No lead-pull-back, MIN. Package thickness = 0.45 not 0.50mm
Lead Length dim. = 0.45mm max. not 0.42mm.
8. The configuration of the pin #1 identifier is optional, but must be located within
the zone indicated. The pin #1 identifier may be either a mold or mark feature.
12 FN6678.2
September 9, 2015

12 Page





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